package edu.sctu.practice.class02.xuqianlan.assign.assign03.Three;
//圆

/**
 * Created by hj on 2015/11/5.
 */
public class Circle {
    protected double radius;

    public Circle() {
        radius = 1.0;
    }

    public Circle(double radius) {
        this.radius = radius;
    }

    public double getRadius() {
        return radius;
    }

    public void setRadius(double radius) {
        this.radius = radius;
    }

    public double findArea() {
        return radius * radius * Math.PI;
    }

    public double findPerimeter() {
        return 2 * radius * Math.PI;
    }

    public boolean equals(edu.sctu.practice.class02.xuqianlan.assign.assign03.Three.Circle circle) {
        return this.radius == circle.getRadius();
    }

    public String toString() {
        return "[Circle] radius=" + radius;
    }
}
